Saw-guide.



wuwwto a 0. L. ROBBINS.

SAW GUIDE.

APPLICATION FILED AUG.28, 1912.

Patented June 30,

Charles L. Robbins wi hmeooeo UNITED STATES PATENT OFFICE.

CHARLES L. ROBBINS, OF BELFAST, NEW YORK.

SAW-GUIDE.

To all whom it may concern Be it known that I, CHARLES L. ROBBINS, a citizen of the United States, residing at Belfast, in the countv of Allegany and State of New York, have invented new and useful Improvements in Saw-Guides, of which the following is av specification.

This invention relates to saw guides and one of the principal objects of the invention is to provide a simple and efficient device of this character which may be conveniently attached to a fallen log or'a standing tree for guiding the saw in its movements.

A further object of the invention is the provision of means for supporting one end of the saw and guiding the same, whereby a single operator may operate the saw without the air of an assistant.

Further objects of this invention will appear as the following specific description is read in connection with the accompanying drawing, which forms a part of this application, and in which Figure 1 is a side elevation. Fig. 2 is a top plan view. Fig. 3 is a vertical sectional view on the line 3-3 of Fig. 1. Fig. 4 is a horizontal section on the line 4-4 of Fig. 1.

Referring more particularly to the drawing, 1 represents the mounting bar which is provided with an extension 2 having a downturned elbow 3 at its outer end. The elbow is provided with an eye 4 adapted to adjustably receive the guiding rod 5, whose inner end is pivotally connected to an ad justing bar 6. This adjusting bar passes through apertures in separated ears 7 and is held against accidental vertical movement in either direction by a clamping spring 8 which is held in engagement with the bar by a bolt or thumb screw 9. The bar 5 has slidably mounted thereon the collar 10 which has swiveled therein the laterally extending bolt 11 adapted to pass through one of the handle apertures in the end of the saw 12. The opposite end of the saw is provided as is usual with a manipulating handle 13.

Pivotally mounted upon the bar 1 is a curved log engaging dog having spurs 15 secured thereto. This log engaging dog Specification of Letters Patent.

Application filed. August 28, 1912.

Patented June 30, 1914. Serial No. 717,539.

comprises separate members which straddle the bar 1 and have pivoted between their upper ends an operating lever 16 provided with a cam or eccentric end 17 which, when the lever 16 is operated, bears against the bar 1 and causes the dog to travel toward the log, as will be readily understood. Slidably mounted upon the bar and adapted to coact in opposition to the dog 14 is a similarly curved dog 18 having a rectangular head 19 somewhat larger than the bar 1 so as to be adapted to rock thereon and bind on the bar when pressure on dog 14 is obtained through the operation of the lever 16. This latter dog 18 is, of course, freely adjustable on the bar so as to accommodate the device for different sized logs.

Secured to the bar 1 adjacent the upper terminal ends of the dog 14 is a saw guiding yoke 20 having a bifurcated leg 21 in which the saw is adapted to operate, as will be readily understood. Mounted in the bifurcation of the leg 21 is a spring 22 which is adapted to engage the saw and hold the same in elevated position against accidental removal so that the saw and guide may be transported from place to place. It will also be noticed that there is provided a plurality of holes to receive the pivoting bolt on the dog 14 so that this dog may be adjusted when necessary. The tension of the spring upon the vertical rod 6 is such as to permit ready lowering of the saw as the same passes through the log or tree.

l Vhat is claimed is A device of the class described comprising a supporting bar, log clamping means mounted thereon, a guiding rod pivotally connected to one end of the supporting bar and having a right angular end, means for guiding and freely holding the right angular end of the guiding rod, a collar slidably mounted upon the guiding rod, and a saw pivotally connected to the collar.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES L. ROBBINS.

WVitnesses:

SMITH BAKER, ERLY H. MADIsoN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

